from __future__ import unicode_literals

import datetime

from django.contrib import admin
from django.contrib.admin.options import IncorrectLookupParameters
from django.contrib.admin.templatetags.admin_list import pagination
from django.contrib.admin.views.main import ChangeList, SEARCH_VAR, ALL_VAR
from django.contrib.admin.tests import AdminSeleniumWebDriverTestCase
from django.contrib.auth.models import User
from django.core.urlresolvers import reverse
from django.template import Context, Template
from django.test import TestCase, override_settings
from django.test.client import RequestFactory
from django.utils import formats
from django.utils import six

from .admin import (ChildAdmin, QuartetAdmin, BandAdmin, ChordsBandAdmin,
    GroupAdmin, ParentAdmin, DynamicListDisplayChildAdmin,
    DynamicListDisplayLinksChildAdmin, CustomPaginationAdmin,
    FilteredChildAdmin, CustomPaginator, site as custom_site,
    SwallowAdmin, DynamicListFilterChildAdmin, InvitationAdmin,
    DynamicSearchFieldsChildAdmin, NoListDisplayLinksParentAdmin)
from .models import (Event, Child, Parent, Genre, Band, Musician, Group,
    Quartet, Membership, ChordsMusician, ChordsBand, Invitation, Swallow,
    UnorderedObject, OrderedObject, CustomIdUser)


@override_settings(ROOT_URLCONF="admin_changelist.urls")
class ChangeListTests(TestCase):

    def setUp(self):
        self.factory = RequestFactory()

    def _create_superuser(self, username):
        return User.objects.create(username=username, is_superuser=True)

    def _mocked_authenticated_request(self, url, user):
        request = self.factory.get(url)
        request.user = user
        return request

    def test_select_related_preserved(self):
        """
        Regression test for #10348: ChangeList.get_queryset() shouldn't
        overwrite a custom select_related provided by ModelAdmin.get_queryset().
        """
        m = ChildAdmin(Child, admin.site)
        request = self.factory.get('/child/')
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                        m.list_filter, m.date_hierarchy, m.search_fields,
                        m.list_select_related, m.list_per_page,
                        m.list_max_show_all, m.list_editable, m)
        self.assertEqual(cl.queryset.query.select_related, {
            'parent': {'name': {}}
        })

    def test_select_related_as_tuple(self):
        ia = InvitationAdmin(Invitation, admin.site)
        request = self.factory.get('/invitation/')
        cl = ChangeList(request, Child, ia.list_display, ia.list_display_links,
                        ia.list_filter, ia.date_hierarchy, ia.search_fields,
                        ia.list_select_related, ia.list_per_page,
                        ia.list_max_show_all, ia.list_editable, ia)
        self.assertEqual(cl.queryset.query.select_related, {'player': {}})

    def test_select_related_as_empty_tuple(self):
        ia = InvitationAdmin(Invitation, admin.site)
        ia.list_select_related = ()
        request = self.factory.get('/invitation/')
        cl = ChangeList(request, Child, ia.list_display, ia.list_display_links,
                        ia.list_filter, ia.date_hierarchy, ia.search_fields,
                        ia.list_select_related, ia.list_per_page,
                        ia.list_max_show_all, ia.list_editable, ia)
        self.assertEqual(cl.queryset.query.select_related, False)

    def test_result_list_empty_changelist_value(self):
        """
        Regression test for #14982: EMPTY_CHANGELIST_VALUE should be honored
        for relationship fields
        """
        new_child = Child.objects.create(name='name', parent=None)
        request = self.factory.get('/child/')
        m = ChildAdmin(Child, admin.site)
        list_display = m.get_list_display(request)
        list_display_links = m.get_list_display_links(request, list_display)
        cl = ChangeList(request, Child, list_display, list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)
        cl.formset = None
        template = Template('{% load admin_list %}{% spaceless %}{% result_list cl %}{% endspaceless %}')
        context = Context({'cl': cl})
        table_output = template.render(context)
        link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
        row_html = '<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th><td class="field-parent nowrap">(None)</td></tr></tbody>' % link
        self.assertFalse(table_output.find(row_html) == -1,
            'Failed to find expected row element: %s' % table_output)

    def test_result_list_html(self):
        """
        Verifies that inclusion tag result_list generates a table when with
        default ModelAdmin settings.
        """
        new_parent = Parent.objects.create(name='parent')
        new_child = Child.objects.create(name='name', parent=new_parent)
        request = self.factory.get('/child/')
        m = ChildAdmin(Child, admin.site)
        list_display = m.get_list_display(request)
        list_display_links = m.get_list_display_links(request, list_display)
        cl = ChangeList(request, Child, list_display, list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)
        cl.formset = None
        template = Template('{% load admin_list %}{% spaceless %}{% result_list cl %}{% endspaceless %}')
        context = Context({'cl': cl})
        table_output = template.render(context)
        link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
        row_html = '<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th><td class="field-parent nowrap">Parent object</td></tr></tbody>' % link
        self.assertFalse(table_output.find(row_html) == -1,
            'Failed to find expected row element: %s' % table_output)

    def test_result_list_editable_html(self):
        """
        Regression tests for #11791: Inclusion tag result_list generates a
        table and this checks that the items are nested within the table
        element tags.
        Also a regression test for #13599, verifies that hidden fields
        when list_editable is enabled are rendered in a div outside the
        table.
        """
        new_parent = Parent.objects.create(name='parent')
        new_child = Child.objects.create(name='name', parent=new_parent)
        request = self.factory.get('/child/')
        m = ChildAdmin(Child, admin.site)

        # Test with list_editable fields
        m.list_display = ['id', 'name', 'parent']
        m.list_display_links = ['id']
        m.list_editable = ['name']
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)
        FormSet = m.get_changelist_formset(request)
        cl.formset = FormSet(queryset=cl.result_list)
        template = Template('{% load admin_list %}{% spaceless %}{% result_list cl %}{% endspaceless %}')
        context = Context({'cl': cl})
        table_output = template.render(context)
        # make sure that hidden fields are in the correct place
        hiddenfields_div = '<div class="hiddenfields"><input type="hidden" name="form-0-id" value="%d" id="id_form-0-id" /></div>' % new_child.id
        self.assertInHTML(hiddenfields_div, table_output, msg_prefix='Failed to find hidden fields')

        # make sure that list editable fields are rendered in divs correctly
        editable_name_field = '<input name="form-0-name" value="name" class="vTextField" maxlength="30" type="text" id="id_form-0-name" />'
        self.assertInHTML('<td class="field-name">%s</td>' % editable_name_field, table_output, msg_prefix='Failed to find "name" list_editable field')

    def test_result_list_editable(self):
        """
        Regression test for #14312: list_editable with pagination
        """

        new_parent = Parent.objects.create(name='parent')
        for i in range(200):
            Child.objects.create(name='name %s' % i, parent=new_parent)
        request = self.factory.get('/child/', data={'p': -1})  # Anything outside range
        m = ChildAdmin(Child, admin.site)

        # Test with list_editable fields
        m.list_display = ['id', 'name', 'parent']
        m.list_display_links = ['id']
        m.list_editable = ['name']
        self.assertRaises(IncorrectLookupParameters, lambda:
            ChangeList(request, Child, m.list_display, m.list_display_links,
                    m.list_filter, m.date_hierarchy, m.search_fields,
                    m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m))

    def test_custom_paginator(self):
        new_parent = Parent.objects.create(name='parent')
        for i in range(200):
            Child.objects.create(name='name %s' % i, parent=new_parent)

        request = self.factory.get('/child/')
        m = CustomPaginationAdmin(Child, admin.site)

        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)

        cl.get_results(request)
        self.assertIsInstance(cl.paginator, CustomPaginator)

    def test_distinct_for_m2m_in_list_filter(self):
        """
        Regression test for #13902: When using a ManyToMany in list_filter,
        results shouldn't appear more than once. Basic ManyToMany.
        """
        blues = Genre.objects.create(name='Blues')
        band = Band.objects.create(name='B.B. King Review', nr_of_members=11)

        band.genres.add(blues)
        band.genres.add(blues)

        m = BandAdmin(Band, admin.site)
        request = self.factory.get('/band/', data={'genres': blues.pk})

        cl = ChangeList(request, Band, m.list_display,
                m.list_display_links, m.list_filter, m.date_hierarchy,
                m.search_fields, m.list_select_related, m.list_per_page,
                m.list_max_show_all, m.list_editable, m)

        cl.get_results(request)

        # There's only one Group instance
        self.assertEqual(cl.result_count, 1)

    def test_distinct_for_through_m2m_in_list_filter(self):
        """
        Regression test for #13902: When using a ManyToMany in list_filter,
        results shouldn't appear more than once. With an intermediate model.
        """
        lead = Musician.objects.create(name='Vox')
        band = Group.objects.create(name='The Hype')
        Membership.objects.create(group=band, music=lead, role='lead voice')
        Membership.objects.create(group=band, music=lead, role='bass player')

        m = GroupAdmin(Group, admin.site)
        request = self.factory.get('/group/', data={'members': lead.pk})

        cl = ChangeList(request, Group, m.list_display,
                m.list_display_links, m.list_filter, m.date_hierarchy,
                m.search_fields, m.list_select_related, m.list_per_page,
                m.list_max_show_all, m.list_editable, m)

        cl.get_results(request)

        # There's only one Group instance
        self.assertEqual(cl.result_count, 1)

    def test_distinct_for_inherited_m2m_in_list_filter(self):
        """
        Regression test for #13902: When using a ManyToMany in list_filter,
        results shouldn't appear more than once. Model managed in the
        admin inherits from the one that defins the relationship.
        """
        lead = Musician.objects.create(name='John')
        four = Quartet.objects.create(name='The Beatles')
        Membership.objects.create(group=four, music=lead, role='lead voice')
        Membership.objects.create(group=four, music=lead, role='guitar player')

        m = QuartetAdmin(Quartet, admin.site)
        request = self.factory.get('/quartet/', data={'members': lead.pk})

        cl = ChangeList(request, Quartet, m.list_display,
                m.list_display_links, m.list_filter, m.date_hierarchy,
                m.search_fields, m.list_select_related, m.list_per_page,
                m.list_max_show_all, m.list_editable, m)

        cl.get_results(request)

        # There's only one Quartet instance
        self.assertEqual(cl.result_count, 1)

    def test_distinct_for_m2m_to_inherited_in_list_filter(self):
        """
        Regression test for #13902: When using a ManyToMany in list_filter,
        results shouldn't appear more than once. Target of the relationship
        inherits from another.
        """
        lead = ChordsMusician.objects.create(name='Player A')
        three = ChordsBand.objects.create(name='The Chords Trio')
        Invitation.objects.create(band=three, player=lead, instrument='guitar')
        Invitation.objects.create(band=three, player=lead, instrument='bass')

        m = ChordsBandAdmin(ChordsBand, admin.site)
        request = self.factory.get('/chordsband/', data={'members': lead.pk})

        cl = ChangeList(request, ChordsBand, m.list_display,
                m.list_display_links, m.list_filter, m.date_hierarchy,
                m.search_fields, m.list_select_related, m.list_per_page,
                m.list_max_show_all, m.list_editable, m)

        cl.get_results(request)

        # There's only one ChordsBand instance
        self.assertEqual(cl.result_count, 1)

    def test_distinct_for_non_unique_related_object_in_list_filter(self):
        """
        Regressions tests for #15819: If a field listed in list_filters
        is a non-unique related object, distinct() must be called.
        """
        parent = Parent.objects.create(name='Mary')
        # Two children with the same name
        Child.objects.create(parent=parent, name='Daniel')
        Child.objects.create(parent=parent, name='Daniel')

        m = ParentAdmin(Parent, admin.site)
        request = self.factory.get('/parent/', data={'child__name': 'Daniel'})

        cl = ChangeList(request, Parent, m.list_display, m.list_display_links,
                        m.list_filter, m.date_hierarchy, m.search_fields,
                        m.list_select_related, m.list_per_page,
                        m.list_max_show_all, m.list_editable, m)

        # Make sure distinct() was called
        self.assertEqual(cl.queryset.count(), 1)

    def test_distinct_for_non_unique_related_object_in_search_fields(self):
        """
        Regressions tests for #15819: If a field listed in search_fields
        is a non-unique related object, distinct() must be called.
        """
        parent = Parent.objects.create(name='Mary')
        Child.objects.create(parent=parent, name='Danielle')
        Child.objects.create(parent=parent, name='Daniel')

        m = ParentAdmin(Parent, admin.site)
        request = self.factory.get('/parent/', data={SEARCH_VAR: 'daniel'})

        cl = ChangeList(request, Parent, m.list_display, m.list_display_links,
                        m.list_filter, m.date_hierarchy, m.search_fields,
                        m.list_select_related, m.list_per_page,
                        m.list_max_show_all, m.list_editable, m)

        # Make sure distinct() was called
        self.assertEqual(cl.queryset.count(), 1)

    def test_pagination(self):
        """
        Regression tests for #12893: Pagination in admins changelist doesn't
        use queryset set by modeladmin.
        """
        parent = Parent.objects.create(name='anything')
        for i in range(30):
            Child.objects.create(name='name %s' % i, parent=parent)
            Child.objects.create(name='filtered %s' % i, parent=parent)

        request = self.factory.get('/child/')

        # Test default queryset
        m = ChildAdmin(Child, admin.site)
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all,
                m.list_editable, m)
        self.assertEqual(cl.queryset.count(), 60)
        self.assertEqual(cl.paginator.count, 60)
        self.assertEqual(list(cl.paginator.page_range), [1, 2, 3, 4, 5, 6])

        # Test custom queryset
        m = FilteredChildAdmin(Child, admin.site)
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, m.list_max_show_all,
                m.list_editable, m)
        self.assertEqual(cl.queryset.count(), 30)
        self.assertEqual(cl.paginator.count, 30)
        self.assertEqual(list(cl.paginator.page_range), [1, 2, 3])

    def test_computed_list_display_localization(self):
        """
        Regression test for #13196: output of functions should be  localized
        in the changelist.
        """
        User.objects.create_superuser(
            username='super', email='super@localhost', password='secret')
        self.client.login(username='super', password='secret')
        event = Event.objects.create(date=datetime.date.today())
        response = self.client.get('/admin/admin_changelist/event/')
        self.assertContains(response, formats.localize(event.date))
        self.assertNotContains(response, six.text_type(event.date))

    def test_dynamic_list_display(self):
        """
        Regression tests for #14206: dynamic list_display support.
        """
        parent = Parent.objects.create(name='parent')
        for i in range(10):
            Child.objects.create(name='child %s' % i, parent=parent)

        user_noparents = self._create_superuser('noparents')
        user_parents = self._create_superuser('parents')

        # Test with user 'noparents'
        m = custom_site._registry[Child]
        request = self._mocked_authenticated_request('/child/', user_noparents)
        response = m.changelist_view(request)
        self.assertNotContains(response, 'Parent object')

        list_display = m.get_list_display(request)
        list_display_links = m.get_list_display_links(request, list_display)
        self.assertEqual(list_display, ['name', 'age'])
        self.assertEqual(list_display_links, ['name'])

        # Test with user 'parents'
        m = DynamicListDisplayChildAdmin(Child, admin.site)
        request = self._mocked_authenticated_request('/child/', user_parents)
        response = m.changelist_view(request)
        self.assertContains(response, 'Parent object')

        custom_site.unregister(Child)

        list_display = m.get_list_display(request)
        list_display_links = m.get_list_display_links(request, list_display)
        self.assertEqual(list_display, ('parent', 'name', 'age'))
        self.assertEqual(list_display_links, ['parent'])

        # Test default implementation
        custom_site.register(Child, ChildAdmin)
        m = custom_site._registry[Child]
        request = self._mocked_authenticated_request('/child/', user_noparents)
        response = m.changelist_view(request)
        self.assertContains(response, 'Parent object')

    def test_show_all(self):
        parent = Parent.objects.create(name='anything')
        for i in range(30):
            Child.objects.create(name='name %s' % i, parent=parent)
            Child.objects.create(name='filtered %s' % i, parent=parent)

        # Add "show all" parameter to request
        request = self.factory.get('/child/', data={ALL_VAR: ''})

        # Test valid "show all" request (number of total objects is under max)
        m = ChildAdmin(Child, admin.site)
        # 200 is the max we'll pass to ChangeList
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, 200, m.list_editable, m)
        cl.get_results(request)
        self.assertEqual(len(cl.result_list), 60)

        # Test invalid "show all" request (number of total objects over max)
        # falls back to paginated pages
        m = ChildAdmin(Child, admin.site)
        # 30 is the max we'll pass to ChangeList for this test
        cl = ChangeList(request, Child, m.list_display, m.list_display_links,
                m.list_filter, m.date_hierarchy, m.search_fields,
                m.list_select_related, m.list_per_page, 30, m.list_editable, m)
        cl.get_results(request)
        self.assertEqual(len(cl.result_list), 10)

    def test_dynamic_list_display_links(self):
        """
        Regression tests for #16257: dynamic list_display_links support.
        """
        parent = Parent.objects.create(name='parent')
        for i in range(1, 10):
            Child.objects.create(id=i, name='child %s' % i, parent=parent, age=i)

        m = DynamicListDisplayLinksChildAdmin(Child, admin.site)
        superuser = self._create_superuser('superuser')
        request = self._mocked_authenticated_request('/child/', superuser)
        response = m.changelist_view(request)
        for i in range(1, 10):
            link = reverse('admin:admin_changelist_child_change', args=(i,))
            self.assertContains(response, '<a href="%s">%s</a>' % (link, i))

        list_display = m.get_list_display(request)
        list_display_links = m.get_list_display_links(request, list_display)
        self.assertEqual(list_display, ('parent', 'name', 'age'))
        self.assertEqual(list_display_links, ['age'])

    def test_no_list_display_links(self):
        """#15185 -- Allow no links from the 'change list' view grid."""
        p = Parent.objects.create(name='parent')
        m = NoListDisplayLinksParentAdmin(Parent, admin.site)
        superuser = self._create_superuser('superuser')
        request = self._mocked_authenticated_request('/parent/', superuser)
        response = m.changelist_view(request)
        link = reverse('admin:admin_changelist_parent_change', args=(p.pk,))
        self.assertNotContains(response, '<a href="%s">' % link)

    def test_tuple_list_display(self):
        """
        Regression test for #17128
        (ChangeList failing under Python 2.5 after r16319)
        """
        swallow = Swallow.objects.create(
            origin='Africa', load='12.34', speed='22.2')
        model_admin = SwallowAdmin(Swallow, admin.site)
        superuser = self._create_superuser('superuser')
        request = self._mocked_authenticated_request('/swallow/', superuser)
        response = model_admin.changelist_view(request)
        # just want to ensure it doesn't blow up during rendering
        self.assertContains(response, six.text_type(swallow.origin))
        self.assertContains(response, six.text_type(swallow.load))
        self.assertContains(response, six.text_type(swallow.speed))

    def test_deterministic_order_for_unordered_model(self):
        """
        Ensure that the primary key is systematically used in the ordering of
        the changelist's results to guarantee a deterministic order, even
        when the Model doesn't have any default ordering defined.
        Refs #17198.
        """
        superuser = self._create_superuser('superuser')

        for counter in range(1, 51):
            UnorderedObject.objects.create(id=counter, bool=True)

        class UnorderedObjectAdmin(admin.ModelAdmin):
            list_per_page = 10

        def check_results_order(ascending=False):
            admin.site.register(UnorderedObject, UnorderedObjectAdmin)
            model_admin = UnorderedObjectAdmin(UnorderedObject, admin.site)
            counter = 0 if ascending else 51
            for page in range(0, 5):
                request = self._mocked_authenticated_request('/unorderedobject/?p=%s' % page, superuser)
                response = model_admin.changelist_view(request)
                for result in response.context_data['cl'].result_list:
                    counter += 1 if ascending else -1
                    self.assertEqual(result.id, counter)
            admin.site.unregister(UnorderedObject)

        # When no order is defined at all, everything is ordered by '-pk'.
        check_results_order()

        # When an order field is defined but multiple records have the same
        # value for that field, make sure everything gets ordered by -pk as well.
        UnorderedObjectAdmin.ordering = ['bool']
        check_results_order()

        # When order fields are defined, including the pk itself, use them.
        UnorderedObjectAdmin.ordering = ['bool', '-pk']
        check_results_order()
        UnorderedObjectAdmin.ordering = ['bool', 'pk']
        check_results_order(ascending=True)
        UnorderedObjectAdmin.ordering = ['-id', 'bool']
        check_results_order()
        UnorderedObjectAdmin.ordering = ['id', 'bool']
        check_results_order(ascending=True)

    def test_deterministic_order_for_model_ordered_by_its_manager(self):
        """
        Ensure that the primary key is systematically used in the ordering of
        the changelist's results to guarantee a deterministic order, even
        when the Model has a manager that defines a default ordering.
        Refs #17198.
        """
        superuser = self._create_superuser('superuser')

        for counter in range(1, 51):
            OrderedObject.objects.create(id=counter, bool=True, number=counter)

        class OrderedObjectAdmin(admin.ModelAdmin):
            list_per_page = 10

        def check_results_order(ascending=False):
            admin.site.register(OrderedObject, OrderedObjectAdmin)
            model_admin = OrderedObjectAdmin(OrderedObject, admin.site)
            counter = 0 if ascending else 51
            for page in range(0, 5):
                request = self._mocked_authenticated_request('/orderedobject/?p=%s' % page, superuser)
                response = model_admin.changelist_view(request)
                for result in response.context_data['cl'].result_list:
                    counter += 1 if ascending else -1
                    self.assertEqual(result.id, counter)
            admin.site.unregister(OrderedObject)

        # When no order is defined at all, use the model's default ordering (i.e. 'number')
        check_results_order(ascending=True)

        # When an order field is defined but multiple records have the same
        # value for that field, make sure everything gets ordered by -pk as well.
        OrderedObjectAdmin.ordering = ['bool']
        check_results_order()

        # When order fields are defined, including the pk itself, use them.
        OrderedObjectAdmin.ordering = ['bool', '-pk']
        check_results_order()
        OrderedObjectAdmin.ordering = ['bool', 'pk']
        check_results_order(ascending=True)
        OrderedObjectAdmin.ordering = ['-id', 'bool']
        check_results_order()
        OrderedObjectAdmin.ordering = ['id', 'bool']
        check_results_order(ascending=True)

    def test_dynamic_list_filter(self):
        """
        Regression tests for ticket #17646: dynamic list_filter support.
        """
        parent = Parent.objects.create(name='parent')
        for i in range(10):
            Child.objects.create(name='child %s' % i, parent=parent)

        user_noparents = self._create_superuser('noparents')
        user_parents = self._create_superuser('parents')

        # Test with user 'noparents'
        m = DynamicListFilterChildAdmin(Child, admin.site)
        request = self._mocked_authenticated_request('/child/', user_noparents)
        response = m.changelist_view(request)
        self.assertEqual(response.context_data['cl'].list_filter, ['name', 'age'])

        # Test with user 'parents'
        m = DynamicListFilterChildAdmin(Child, admin.site)
        request = self._mocked_authenticated_request('/child/', user_parents)
        response = m.changelist_view(request)
        self.assertEqual(response.context_data['cl'].list_filter, ('parent', 'name', 'age'))

    def test_dynamic_search_fields(self):
        child = self._create_superuser('child')
        m = DynamicSearchFieldsChildAdmin(Child, admin.site)
        request = self._mocked_authenticated_request('/child/', child)
        response = m.changelist_view(request)
        self.assertEqual(response.context_data['cl'].search_fields, ('name', 'age'))

    def test_pagination_page_range(self):
        """
        Regression tests for ticket #15653: ensure the number of pages
        generated for changelist views are correct.
        """
        # instantiating and setting up ChangeList object
        m = GroupAdmin(Group, admin.site)
        request = self.factory.get('/group/')
        cl = ChangeList(request, Group, m.list_display,
                m.list_display_links, m.list_filter, m.date_hierarchy,
                m.search_fields, m.list_select_related, m.list_per_page,
                m.list_max_show_all, m.list_editable, m)
        per_page = cl.list_per_page = 10

        for page_num, objects_count, expected_page_range in [
            (0, per_page, []),
            (0, per_page * 2, list(range(2))),
            (5, per_page * 11, list(range(11))),
            (5, per_page * 12, [0, 1, 2, 3, 4, 5, 6, 7, 8, '.', 10, 11]),
            (6, per_page * 12, [0, 1, '.', 3, 4, 5, 6, 7, 8, 9, 10, 11]),
            (6, per_page * 13, [0, 1, '.', 3, 4, 5, 6, 7, 8, 9, '.', 11, 12]),
        ]:
            # assuming we have exactly `objects_count` objects
            Group.objects.all().delete()
            for i in range(objects_count):
                Group.objects.create(name='test band')

            # setting page number and calculating page range
            cl.page_num = page_num
            cl.get_results(request)
            real_page_range = pagination(cl)['page_range']

            self.assertListEqual(
                expected_page_range,
                list(real_page_range),
            )


class AdminLogNodeTestCase(TestCase):

    def test_get_admin_log_templatetag_custom_user(self):
        """
        Regression test for ticket #20088: admin log depends on User model
        having id field as primary key.

        The old implementation raised an AttributeError when trying to use
        the id field.
        """
        context = Context({'user': CustomIdUser()})
        template_string = '{% load log %}{% get_admin_log 10 as admin_log for_user user %}'

        template = Template(template_string)

        # Rendering should be u'' since this templatetag just logs,
        # it doesn't render any string.
        self.assertEqual(template.render(context), '')


@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
                   ROOT_URLCONF="admin_changelist.urls")
class SeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):

    available_apps = ['admin_changelist'] + AdminSeleniumWebDriverTestCase.available_apps
    fixtures = ['users.json']
    webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'

    def test_add_row_selection(self):
        """
        Ensure that the status line for selected rows gets updated correcly (#22038)
        """
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
                                    '/admin/auth/user/'))

        form_id = '#changelist-form'

        # Test amount of rows in the Changelist
        rows = self.selenium.find_elements_by_css_selector(
            '%s #result_list tbody tr' % form_id)
        self.assertEqual(len(rows), 1)

        # Test current selection
        selection_indicator = self.selenium.find_element_by_css_selector(
            '%s .action-counter' % form_id)
        self.assertEqual(selection_indicator.text, "0 of 1 selected")

        # Select a row and check again
        row_selector = self.selenium.find_element_by_css_selector(
            '%s #result_list tbody tr:first-child .action-select' % form_id)
        row_selector.click()
        self.assertEqual(selection_indicator.text, "1 of 1 selected")


class SeleniumChromeTests(SeleniumFirefoxTests):
    webdriver_class = 'selenium.webdriver.chrome.webdriver.WebDriver'


class SeleniumIETests(SeleniumFirefoxTests):
    webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
